[FFmpeg-devel] [PATCH 75/80] avcodec/mpegvideo: Move h263_long_vectors to H263DecContext

[Andreas Rheinhardt]

Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
---
 libavcodec/flvdec.c       | 2 +-
 libavcodec/h263dec.h      | 1 +
 libavcodec/intelh263dec.c | 2 +-
 libavcodec/ituh263dec.c   | 9 ++++++---
 libavcodec/mpegvideo.h    | 1 -
 libavcodec/rv10.c         | 2 +-
 6 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/libavcodec/flvdec.c b/libavcodec/flvdec.c
index 3c14f2c54c..8ff4c03100 100644
--- a/libavcodec/flvdec.c
+++ b/libavcodec/flvdec.c
@@ -92,7 +92,7 @@ int ff_flv_decode_picture_header(H263DecContext *h)
 
     s->h263_plus = 0;
 
-    s->h263_long_vectors = 0;
+    h->long_vectors = 0;
 
     /* PEI */
     if (skip_1stop_8data_bits(&s->gb) < 0)
diff --git a/libavcodec/h263dec.h b/libavcodec/h263dec.h
index 13e097358f..9c4c26242c 100644
--- a/libavcodec/h263dec.h
+++ b/libavcodec/h263dec.h
@@ -44,6 +44,7 @@ typedef struct H263DecContext {
     MPVMainDecContext m;
 
     int (*decode_mb)(MPVDecContext *s, int16_t block[12][64]); // used to 
avoid a switch
+    int long_vectors;      ///< use horrible H.263v1 long vector mode
 } H263DecContext;
 
 int ff_h263_decode_motion(MPVDecContext *s, int pred, int f_code);
diff --git a/libavcodec/intelh263dec.c b/libavcodec/intelh263dec.c
index deed9152ea..f621c9686c 100644
--- a/libavcodec/intelh263dec.c
+++ b/libavcodec/intelh263dec.c
@@ -62,7 +62,7 @@ int ff_intel_h263_decode_picture_header(H263DecContext *h)
 
     s->pict_type = AV_PICTURE_TYPE_I + get_bits1(&s->gb);
 
-    s->h263_long_vectors = get_bits1(&s->gb);
+    h->long_vectors = get_bits1(&s->gb);
 
     if (get_bits1(&s->gb) != 0) {
         av_log(s->avctx, AV_LOG_ERROR, "SAC not supported\n");
diff --git a/libavcodec/ituh263dec.c b/libavcodec/ituh263dec.c
index 9e92ed94ce..299a668290 100644
--- a/libavcodec/ituh263dec.c
+++ b/libavcodec/ituh263dec.c
@@ -82,7 +82,7 @@ void ff_h263_show_pict_info(H263DecContext *h)
          s->gb.size_in_bits, 1-s->no_rounding,
          s->obmc ? " AP" : "",
          s->umvplus ? " UMV" : "",
-         s->h263_long_vectors ? " LONG" : "",
+         h->long_vectors ? " LONG" : "",
          s->h263_plus ? " +" : "",
          s->h263_aic ? " AIC" : "",
          s->alt_inter_vlc ? " AIV" : "",
@@ -272,6 +272,9 @@ int ff_h263_resync(MPVMainDecContext *m)
 
 int ff_h263_decode_motion(MPVDecContext *s, int pred, int f_code)
 {
+    /* The following is only allowed because no h263dec-based
+     * decoder uses slice-threading. */
+    const H263DecContext *const h = (H263DecContext*)s;
     int code, val, sign, shift;
     code = get_vlc2(&s->gb, ff_h263_mv_vlc.table, H263_MV_VLC_BITS, 2);
 
@@ -293,7 +296,7 @@ int ff_h263_decode_motion(MPVDecContext *s, int pred, int 
f_code)
     val += pred;
 
     /* modulo decoding */
-    if (!s->h263_long_vectors) {
+    if (!h->long_vectors) {
         val = sign_extend(val, 5 + f_code);
     } else {
         /* horrible H.263 long vector mode */
@@ -1150,7 +1153,7 @@ int ff_h263_decode_picture_header(H263DecContext *h)
 
         s->pict_type = AV_PICTURE_TYPE_I + get_bits1(&s->gb);
 
-        s->h263_long_vectors = get_bits1(&s->gb);
+        h->long_vectors = get_bits1(&s->gb);
 
         if (get_bits1(&s->gb) != 0) {
             av_log(s->avctx, AV_LOG_ERROR, "H.263 SAC not supported\n");
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index d0e4e8e9ff..0e26bed7fd 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -177,7 +177,6 @@ typedef struct MPVContext {
 
     /* motion compensation */
     int unrestricted_mv;        ///< mv can point outside of the coded picture
-    int h263_long_vectors;      ///< use horrible H.263v1 long vector mode
 
     BlockDSPContext bdsp;
     FDCTDSPContext fdsp;
diff --git a/libavcodec/rv10.c b/libavcodec/rv10.c
index 1fbd99a965..e1379b634c 100644
--- a/libavcodec/rv10.c
+++ b/libavcodec/rv10.c
@@ -390,7 +390,7 @@ static av_cold int rv10_decode_init(AVCodecContext *avctx)
     rv->orig_height =
     s->height       = avctx->coded_height;
 
-    s->h263_long_vectors = ((uint8_t *) avctx->extradata)[3] & 1;
+    h->long_vectors = avctx->extradata[3] & 1;
     rv->sub_id           = AV_RB32((uint8_t *) avctx->extradata + 4);
 
     major_ver = RV_GET_MAJOR_VER(rv->sub_id);
-- 
2.32.0

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